package com.zhoukx.netty.protocoltcp;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;

import java.nio.charset.Charset;

public class MyClientHandler extends SimpleChannelInboundHandler<MessageProtocol> {

    private int count;

    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        // 使用客户端发送10调数据:天气冷,吃火锅
        for (int i = 0; i < 5; i++) {
            String mes = "天气冷,吃火锅" + i;
            byte[] content = mes.getBytes(Charset.forName("utf-8"));
            int length = mes.getBytes(Charset.forName("utf-8")).length;

            // 创建协议包对象
            MessageProtocol messageProtocol = new MessageProtocol();
            messageProtocol.setLen(length);
            messageProtocol.setContent(content);
            ctx.writeAndFlush(messageProtocol);

        }
    }

    @Override
    protected void channelRead0(ChannelHandlerContext ctx, MessageProtocol msg) throws Exception {


        int len = msg.getLen();
        byte[] content = msg.getContent();


        System.out.println("客户端接收消息如下:");
        System.out.println("长度:" + len);
        System.out.println("内容:" + new String(content, Charset.forName("utf-8")));
        System.out.println("客户端接收消息数量= " + (++this.count));
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {

        System.out.println("异常信息:" + cause.getMessage());
        ctx.close();
    }
}
